Philly free-jazz group Irreversible Entanglements have shared a cover of Sun Ra’s “Nuclear War,” which is part of a larger tribute to the famed avant-garde composer, coming May 26. The tribute album, titled Nuclear War, is organized by non-profit Red Hot and is the first in a series. The forthcoming album features the already-released “Nuke’s Blues” by Georgia Anne Muldrow featuring Josef Leimberg, plus contributions from Angel Bat Dawid, Malcolm Jiyane Tree-O, and Grandmaster CAP.